<?xml version="1.0" encoding="UTF-8"?>
<xml>
<records>
<record>
  <contributors>
    <authors>
      <author>Biedermann, Anna</author>
      <author>Muñoz López, Natalia</author>
      <author>Santolaya Sáenz, José Luis</author>
      <author>Valero Martín, José Ignacio</author>
    </authors>
  </contributors>
  <titles>
    <title>Sustainability improvement in complex systems composed of products and services</title>
    <secondary-title>Int. j. life cycle assess.</secondary-title>
  </titles>
  <doi>10.1007/s11367-021-02014-9</doi>
  <pages/>
  <volume/>
  <number/>
  <dates>
    <year>2021</year>
    <pub-dates>
      <date>2021</date>
    </pub-dates>
  </dates>
  <abstract/>
</record>

</records>
</xml>